推 kenting15:感謝~ 07/14 21:22
→ Calla:撲撲 我瞎了沒看到前篇chest大推文^^" 祝考試順利 ^^ / 07/14 23:01
※ 引述《kenting15 (我不像我)》之銘言：
: 32. GWD30-Q32: B
: A major chemical spill occurred five years ago at Baker’s Beach, the world's
: sole nesting ground for Merrick sea turtles, and prevented nearly all the
: eggs laid that year from hatching. Yet the number of adult female Merricks
: returning to lay their eggs at Baker’s Beach has actually increased somewhat
: since five years ago. Clearly, environmentalists’prediction that the world's
: Merrick population would decline as a result of the spill has proven
: unfounded.
: Which of the following, if true, most seriously undermines the argument
: offered in refutation of the environmentalists’ prediction?
: B. Female Merrick sea turtles begin returning to Baker’s Beach to lay their
: eggs when they are ten years old.
: 我自己定義的因果關係為
: 因:母龜跑回來下蛋的隻數增加
: 果:化學污染問題的影響沒有出現
: 其他的答案我都排除掉了 但不知道為什麼因果關係跟烏龜的年齡有關......
: 請問大家 感謝~!
因為烏龜十年後才會回到棲息地下蛋
因此五年前的化學污染而導致龜蛋無法孵化的後果尚未顯現
換而言之可能是因為過去10~15前龜蛋孵化良好
所以這五年來才會有那麼多烏龜回來下蛋
並無法證明五年前的意外對海龜沒有造成影響
因此和年齡有直接關係
若B為真那則削弱結論(->污染並不影響孵化)
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◆ From: 124.8.12.96
※ 編輯: Calla 來自: 124.8.12.96 (07/14 19:20)